HVAC monitoring hardware



FIG. 1 is a front/right perspective view of the HVAC monitoring hardware showing my new design;

FIG. 2 is front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

CLAIM The ornamental design for a HVAC monitoring hardware, as shown and described. 